| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2018 Philippe Proulx <pproulx@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <stdint.h> |
| 8 | #include <string.h> |
| 9 | |
| 10 | #include "common/assert.h" |
| 11 | |
| 12 | #include "ctf-meta-visitors.hpp" |
| 13 | |
| 14 | static int update_field_class_stored_value_index(struct ctf_field_class *fc, |
| 15 | struct ctf_trace_class *tc, |
| 16 | struct ctf_stream_class *sc, |
| 17 | struct ctf_event_class *ec) |
| 18 | { |
| 19 | int ret = 0; |
| 20 | uint64_t i; |
| 21 | struct ctf_field_path *field_path = NULL; |
| 22 | struct ctf_field_class_int *tgt_fc = NULL; |
| 23 | uint64_t *stored_value_index = NULL; |
| 24 | |
| 25 | if (!fc) { |
| 26 | goto end; |
| 27 | } |
| 28 | |
| 29 | switch (fc->type) { |
| 30 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 31 | { |
| 32 | ctf_field_class_variant *var_fc = ctf_field_class_as_variant(fc); |
| 33 | |
| 34 | field_path = &var_fc->tag_path; |
| 35 | stored_value_index = &var_fc->stored_tag_index; |
| 36 | tgt_fc = &var_fc->tag_fc->base; |
| 37 | break; |
| 38 | } |
| 39 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 40 | { |
| 41 | struct ctf_field_class_sequence *seq_fc = ctf_field_class_as_sequence(fc); |
| 42 | |
| 43 | field_path = &seq_fc->length_path; |
| 44 | stored_value_index = &seq_fc->stored_length_index; |
| 45 | tgt_fc = seq_fc->length_fc; |
| 46 | break; |
| 47 | } |
| 48 | default: |
| 49 | break; |
| 50 | } |
| 51 | |
| 52 | if (field_path) { |
| 53 | BT_ASSERT(tgt_fc); |
| 54 | BT_ASSERT(tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_INT || |
| 55 | tgt_fc->base.base.type == CTF_FIELD_CLASS_TYPE_ENUM); |
| 56 | if (tgt_fc->storing_index >= 0) { |
| 57 | /* Already storing its value */ |
| 58 | *stored_value_index = (uint64_t) tgt_fc->storing_index; |
| 59 | } else { |
| 60 | /* Not storing its value: allocate new index */ |
| 61 | tgt_fc->storing_index = tc->stored_value_count; |
| 62 | *stored_value_index = (uint64_t) tgt_fc->storing_index; |
| 63 | tc->stored_value_count++; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | switch (fc->type) { |
| 68 | case CTF_FIELD_CLASS_TYPE_STRUCT: |
| 69 | { |
| 70 | struct ctf_field_class_struct *struct_fc = ctf_field_class_as_struct(fc); |
| 71 | |
| 72 | for (i = 0; i < struct_fc->members->len; i++) { |
| 73 | struct ctf_named_field_class *named_fc = |
| 74 | ctf_field_class_struct_borrow_member_by_index(struct_fc, i); |
| 75 | |
| 76 | ret = update_field_class_stored_value_index(named_fc->fc, tc, sc, ec); |
| 77 | if (ret) { |
| 78 | goto end; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | break; |
| 83 | } |
| 84 | case CTF_FIELD_CLASS_TYPE_VARIANT: |
| 85 | { |
| 86 | struct ctf_field_class_variant *var_fc = ctf_field_class_as_variant(fc); |
| 87 | |
| 88 | for (i = 0; i < var_fc->options->len; i++) { |
| 89 | struct ctf_named_field_class *named_fc = |
| 90 | ctf_field_class_variant_borrow_option_by_index(var_fc, i); |
| 91 | |
| 92 | ret = update_field_class_stored_value_index(named_fc->fc, tc, sc, ec); |
| 93 | if (ret) { |
| 94 | goto end; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | break; |
| 99 | } |
| 100 | case CTF_FIELD_CLASS_TYPE_ARRAY: |
| 101 | case CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 102 | { |
| 103 | struct ctf_field_class_array_base *array_fc = ctf_field_class_as_array_base(fc); |
| 104 | |
| 105 | ret = update_field_class_stored_value_index(array_fc->elem_fc, tc, sc, ec); |
| 106 | if (ret) { |
| 107 | goto end; |
| 108 | } |
| 109 | |
| 110 | break; |
| 111 | } |
| 112 | default: |
| 113 | break; |
| 114 | } |
| 115 | |
| 116 | end: |
| 117 | return ret; |
| 118 | } |
| 119 | |
| 120 | int ctf_trace_class_update_value_storing_indexes(struct ctf_trace_class *ctf_tc) |
| 121 | { |
| 122 | uint64_t i; |
| 123 | |
| 124 | if (!ctf_tc->is_translated) { |
| 125 | update_field_class_stored_value_index(ctf_tc->packet_header_fc, ctf_tc, NULL, NULL); |
| 126 | } |
| 127 | |
| 128 | for (i = 0; i < ctf_tc->stream_classes->len; i++) { |
| 129 | uint64_t j; |
| 130 | ctf_stream_class *sc = (ctf_stream_class *) ctf_tc->stream_classes->pdata[i]; |
| 131 | |
| 132 | if (!sc->is_translated) { |
| 133 | update_field_class_stored_value_index(sc->packet_context_fc, ctf_tc, sc, NULL); |
| 134 | update_field_class_stored_value_index(sc->event_header_fc, ctf_tc, sc, NULL); |
| 135 | update_field_class_stored_value_index(sc->event_common_context_fc, ctf_tc, sc, NULL); |
| 136 | } |
| 137 | |
| 138 | for (j = 0; j < sc->event_classes->len; j++) { |
| 139 | struct ctf_event_class *ec = (ctf_event_class *) sc->event_classes->pdata[j]; |
| 140 | |
| 141 | if (!ec->is_translated) { |
| 142 | update_field_class_stored_value_index(ec->spec_context_fc, ctf_tc, sc, ec); |
| 143 | update_field_class_stored_value_index(ec->payload_fc, ctf_tc, sc, ec); |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | return 0; |
| 149 | } |